Arc Segments not matching

[Spotterhphc]

Hey

I've seen this for years and and until now have just managed . If I am interpolating some holes whose geometry is identical to one another, mastercam/post outputs the I/J code .0001 different usually when the holes are in different quadrants. Making it a pain to dial in a tight bore. If I change the tool diameter by  .00005 then they all post the same. Where is this tolerance rounding happening and how do I make a perm fix? See the sample code below. It's easy enough to just add .00005 to the tool diameter but if I forget then..... 

 

Thanks!

X5.8987 Z-.3825 I.0237 J0.
X5.8513 Z-.395 I-.0237 J0.
X5.8987 Z-.4075 I.0237 J0.
X5.8513 Z-.42 I-.0237 J0.
X5.8987 Z-.4325 I.0237 J0.
X5.8513 Z-.445 I-.0237 J0.
X5.8987 Z-.4575 I.0237 J0.
X5.8513 Z-.47 I-.0237 J0.
X5.8987 Z-.4825 I.0237 J0.
X5.8513 Z-.495 I-.0237 J0.
X5.8987 Z-.5075 I.0237 J0.
X5.8513 Z-.52 I-.0237 J0.
X5.8987 Z-.5325 I.0237 J0.
X5.8513 Z-.545 I-.0237 J0.
X5.8987 Z-.5575 I.0237 J0.
X5.8513 Z-.57 I-.0237 J0.
X5.8987 I.0237 J0.
X5.8513 I-.0237 J0.
X5.8533 Y-.2717 I.0237 J0.
X5.8665 Y-.2767 I.0091 J.0041
G01 G40 X5.8757 Y-.2727
Z-.55 F50.
G00 Z.25
X6.2712 Y-.222
Z.025
G01 Z.005 F25.
G41 D3 X6.2612 F20.
G03 X6.2512 Y-.232 I0. J-.01
X6.2988 Z-.0075 I.0238 J0.
X6.2512 Z-.02 I-.0238 J0.
X6.2988 Z-.0325 I.0238 J0.
X6.2512 Z-.045 I-.0238 J0.
X6.2988 Z-.0575 I.0238 J0.
X6.2512 Z-.07 I-.0238 J0.
X6.2988 Z-.0825 I.0238 J0.
X6.2512 Z-.095 I-.0238 J0.
X6.2988 Z-.1075 I.0238 J0.
X6.2512 Z-.12 I-.0238 J0.
X6.2988 Z-.1325 I.0238 J0.

[Leon82]

It's the way it's rounding it off usually I'll just redraw all the holes with a nice even number